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H. O. YEISER KNOGKDOWN FILE BOX.

No. 456,075. Patented July 14, 1891.

UNI D STATES PATENT OFFICE.

HENRY O. YEISER, OF CINCINNATI, OHIO, ASSIGNOR TO THE GLOBE COM- PANY,OF SAME PLACE.

KNOCKDOWN FILE-BOX.

SPECIFICATION formingpart of Letters Patent No. 456,075, dated July 14,1891.

Application filed April 9, 1891. Serial No. 388,226. (No model.)

To aZl whom it may concern.-

Be it known that I, HENRY O. YEISER, a citizen of the United States,residing at Cincinnati,Hamilton county, State of Ohio, have inventedcertain new and useful Improvements in a Knockdown File-Box, of whichthe following is a specification,reference being had to the accompanyingdrawings.

My invention has for its object the construction of pasteboard boxes (orboxes of other suitable material) for filing legal documents, theinvention relating more particularly to the construction of the rear orclosed end thereof, as will more fully hereinafter place, showing saidbox in a knocked-down position ready for shipment. Fig. 2 is aperspective view of the box shown in Fig. 1, the

sides thereof being righted to position, and showing the position of therear end flaps when about closing and completing said end portion. Fig.3 is a perspective view of the rear end of the box shown in Fig. 2 afterhaving been completed according to my invention.

The box, as preferably constructed, consists of the top and bottomportions A B, sides 0, side end flaps a,'and bottom end flaps D, allformed from one piece of suitable material and creased and bent toposition in the usual manner; but, if desired, said box may beconstructed from two or more separate pieces properly glued together.

My invention consists in. the construction of the rear end flap D andthe means shown for connecting it to the rear end portion of top A. Onthe outer free edge of flap D is formed an integral flange d, creasedand bent as shown, which flange overlaps the top edge of the side endflaps a and engages beneath the rear under surface of top A, as shown bydotted lines in Fig. 3. To the top edgeof flap D is glued the flexiblestrip 01', a portion of the outer edge of said gummed strip overlappingthe outer edge of flap D, as shown in Fig. 2, which overlapping edge isglued to the outer edge of top A, as shown in Fig. 3. It will be seen byreference to Fig. 3 that the flange (Z of flap D rests beneath the topof the box and overlaps the end flaps a andthat the gummed strip dserves to retain said end flap and its flange in position. the lattergreatly assisting to strengthen the end portion. The front end of thebox shown is provided with the usual side end flaps a and bottom endflap D, the elongated portion of said flap engaging within aslit a inthe usual manner; but this front end portion constitutes no feature ofmy invention.

My invention may be advantageously applied in the construction of theclosed ends of telescoping file-boxes,such as are now commonly in usefor office purposes.

The great disadvantage attendant upon the usual method of manufacturingfile-boxes is that as now commonly constructed said boxes mustnecessarily be made complete in the factory and shipped in a completedform, by reason of which a very considerable space is required to shipafew hundred boxes. \Vhen constructed according to my improvement, thisvery considerable disadvantage is overcome, as the boxes may be finishedcomplete in the factory, except securing the gummed strip (1 to place onthe cover A, which can readily be done by an inexperienced workman afterthe boxes have arrivedat their destination.

strip (1 unconnected with the top of the box the latter may be readilyknocked down, as shown in Fig. 1, and a large number of boxes may inthis manner be shipped in a comparatively small space.

The advantages of my improvements are apparent, facilitating, as theydo, in economizing space and also in affording additional strength tothe closed end when most needed.

What I claim as new, and desire to secure by Letters Patent, is.

A knockdown file-box consisting of top A,

bottom B,sides O, the latter having end flaps By leaving the outer freeedge of gummed

